Yes, it is still alive. People move on the the latest / greatest things, and M.E was one heck of a program in its prime. Its almost 10 years old now, and still receiving many downloads daily. I'm very proud to have been part of its development. From Cenwesi's Cobra II, then Cobra III as inspiration. Started building MediaEngine alongside Magnetiks software. Phat_b came on as a co-developer, handling all that I didn't understand about database work, and providing code review and mentoring.
MediaCar came along, stole a few M.E. users RoadRunner came up and a bunch of people switched to it, but i know there's people out there still using M.E. Google Analytics doesn't lie.
I'm here if you have any questions ever!